Barrel stave crozer



Nov. 16, 1937. J. w. LEONARD ET-AL 2,099,445

BARREL sTAvE cRozER Filed oct. 22, 193e 5 sheets-sheet 1 Nlqv. 16', 1937. J. w. LEONARD ET Al. 2y099445 BARREL sTAvE cRozER Filed Oct. 22, 1936 5 Sheets-Sheet 2 Nov. 16,'1937. `J W, EQNARD ET AL- 2,099,445

BARREL S TAVE CROZER 'Filed oct. 22, 195e 5 sheets-sheet 5 Y rel stavecrozers and has particular reference to means and methods for duplicating an imperfect Patented Nov. 16, 1937 UNITED STATES PATENT oFFlcE Y 2,099,445v BARREL sTAVE cRo'zER Application October 22, 1936, Serial No. 106,938

Y 11 Claims. rlhis invention relates to improvements in barstave which it has been found necessary toV remove from a barrel because of some deciency or fault which has shown up under test.

"In the manufacture of barrels,v particularly those ,usedV for holding liquids, stave, stock is steamed and bent and from such bent stock,`

staves of substantially uniform thickness are cut to the proper curvature in cross-section for the particular run of barrels to be made. The stock from which the staves are so cut, is of random width and the side edges of the staves are vcut to secure from the stock the maximum available widths, .the resulting ystaves being like the stock,

of random widths;

From these staves a barrel shellwithout heads, is assembled and the staves,V temporarily secured by heavy ironrings, these rings being forcedon the staves to securely and tightly hold them togethenand thereafter `such treatment as charring, or coating with various preparations, is given the interior of the shell. v Y Y v The shell thus made ready is then placed in a machine known as a crozer which cuts the shell to the desired length, bevels the inner'surfaces of the ends of the staves and cuts certain .grooves therein adjacent each of the two ends, the deepest of the grooves at each such end rbeing designated a Croze and being adapted to receive and hold a head of the barrel. After crozing, the rings adjacent the ends of the barrel areloosened, heads placed and secured by tightening the rings, thev exterior ofthe barrel turned or otherwise iinished and the rings replaced with the usual metal hoops. Y After completion theV barrel is tested under steam pressure or otherwise,A to determine whether it be leak proof or not. Should the test of a barrel show that a stave is faulty, it is necessary to replace the stave, or throw the entire barrel away. It is found in this replacement that in spite of all care in the manufacture of the barrels lthat there are individual vdifferences in the length of the staves from barrel to barrel and that not only must a replacement lstave of identical width be selected but the length of the stave must be individual, if a tight barrel is to be secured. Y Y' To provide stock for replacement, it is customary after the shells have'had interior treatment to select at random a number of these shells and to crozethem at one end only, these replacement shells being then knocked down and the (o1. 147418)v Y staves placed in stock. When a barrel with a faulty stave shows up, it is shunted to thereplacement division with the faulty stave marked. i The hoops are loosened, the faulty stave and one head are removedand a replacement stave of substantially identical width is selected from the` replacement stock. It has then been customary to place this selected stave in thev barrel with its Vcrozed end engaging the barrel head not removed and to tighten the hoops, rst at the crozed end andthereafter at the unfinished end. After this is done hand tools are4 usedto cut the stave to length, bevel the end and groove and Croze the stave to correspond with the original staves of the barrel, the head being then replaced finished up and retested. :It is found however that there isa tendency to enlarge and possibly deepen the croze in the part ofthe barrel which wasy not replaced and an additional chance for leakage is introduced.r

It is the purpose of the present device to reproduce in replacement staves grooves rand. particularly a croze Vwhich is identically Vpositioned yand otherwise identical with the croze in the original stave which is to be' replaced.

The objects of the present invention are:

To provide means and methods for reproducing replacement staves which areV substantially identical with a stave which has been removed.

To provide means for positioning and holding a stave for crozing and means for crozing the stave.

The meansl bywhich these and other objects are accomplished and the manner of their accomplishment will readily be understood from the following description, on reference to the accompanying drawings, in which,-

. Fig. 1 is aside elevation ofthe machine.V Y Fig. 2 is an end elevation. l

Fig. 3 is a sectional elevation taken on the linel III- III of Figs. l and 5.

Fig.4is a sectional elevation taken on the line IV-IV of Figs. 1 and 5.v Y

Fig. 5 is. afragmentary sectional elevation taken on the line V-V of Fig. 4; and l Fig. '6 is a section taken on the lineVI--VI of Fig. 4. l

Referringnow to the drawings in which the various parts are indicated by numerals, 9 is a bed plate supported as by legs l0. II is a frame mounted on the bed plate and l2 a slide adjustably mounted. in the frame, I3 being an adjusting screw by means of Vwhich the slide I2 may be Vraised or lowered.V I4 is a member forming a portion of the slide, from which member cylindrcal arm I5 rigidly extends. Turnably mounted on the arm I5 is a motor support I6, to which a motor I1 is secured. I8 are bearings suitably secured to the support I6, and in which bearings a shaft I9 is journaled, this shaft carrying a crozing head 20, which has blades 2|, 22, 23, and 24 adapted respectively to cut oif the end, bevel the end, form an arcuate groove adjacent the bevel and cut the croze in therstave. Heads of this type being well known and purchasable in the open market, no attempt has been made to show the detail of the head construction.

25 is a belt pulley on the shaft ofthe motor' I1, 26 a pulley on the shaft I9, and 21a driving belt. 28 is a hand lever secured to the support I6 by means of which the support I6 and the head 20 carried thereby together with the other incidental parts may be shifted around the arm I5. 29 is a counterweight. Y

, 3f!v is a cradle for one end of the staves which cradle iswrigidly secured to one end of the bed plate 9'as by the stud 3| and nut 32, this support being positionediin alignment with the Croze cutter 2'4of the head 2D. .S3/is a cradle for the midportion oflth'e staves, this support preferably being adjustably secured to the bed plate as by the stud'34` and nut 35, the stud 3,4 being movable along a-slot 36, extending longitudinally along the center line ofthe bed plate. 31 is a cradle for the opposite end ofthe staves this `cradle being also securedV as by a stud 38 and nut 39, the vstud being disposed in a slot 4H extending longitudinally of the bed'plate and if desired, forming an e uninterrupted continuation of the slot 3S, though not so shown.

The cradles 3Il` and 31 Vhave arcuate seats 4I and 42 respectively, which seats are of identical radiuswith the outside of the barrel at the crozes, these seats vbeing positioned concentrically below the axial center line ofthe arm I5. The seat 4I terminates in a radial shoulder 43 and the seat 42 in a similarly radial shoulder 44 againstV which-shoulders the stave 45 to be duplicated is seated. These two shoulders are at equal distances laterally from the longitudinal center line of the machine. 46 is the'replacement stave which is to be completed.

' 41'is.a positioningv member which is pivotally secured as by a pin 43 to the cradle 3B adjacent the shoulder 43, this positioning member having a blade portion 49, the thickness of the blade being` just equal to the width of the croze 50 in one end'rof the stave`45 which is to be duplicated, and the blade being adapted to snugly engage and seat in the croze of'such stave.

Thev cradle 31 hasa pair of upwardly extending armsY 5I betweenl Which arms a blade 52 is pivotallyV mounted asV on a pin 53, the thickness of this blade being exactly equal to the width of the Croze in the opposite end of the stave 45 Whichis to be duplicated, and to the width of the croze in the corresponding end of the replacement stave 45. 54 are a second pair of lugs disposed opposite' the lugs 5I and spaced apart to receive thefree end of the blade 52. The cradle 33 has a seat portion with a radius equal to the radius of the center of the barrel, and is adapted to be positioned substantially at the center portion of the staves whichv are to'be worked on. 69, 6I, and 62 are stave clamps, the clamps 6U and 62 being ordinarily the only ones used, these two clamps having each an arcuate surface conforming to the radius of the inside of the barrel ata distance below the'croze equal to the' distance the clamps are positioned from the croze in the device. Preferably the clamps have teeth 63 which imbed in and firmly grip the staves. If the clamp 6I is used it is formed with a radius conforming to the inner radius of the barrel at the center. Each clamp, as the clamp Sil, is secured to a depressing member 54 as by a bolt 55, the depressing member being slidably mounted in a shoe E53 secured to the side of the bed plate 9 Vand extending below such shoe. 61 is a foot pedal which is secured to a shaft 68 as by a key 69. Similarly secured to the shaft 68 are arms 1U, which arms are connected through links 1I to the member 54.

It will be understood that the various cutters of the crozing head 29 are shaped and set to cut off, bevel, groove, and croze the stave and in exact conformity With the similar work originally done on the staves.

Operation When a' barrel has been tested and av stave thereof'shown t'o' be faulty, the barrel is loosened up andthe faultyv stave removed. From the replacement stock a'replacement stave of substantially identical width is selected, this stave having one end only crozed. The removed stave, being the stave 45 ofthe drawings, is positioned in the three' cradles 3U', 33and 31 and shoved-solidly against'the shoulders 43 and 44'. The blade 49 is thenturneddownwardly into thecroze 50, the stave beingshifted longitudinally until such engagement is possible and can be effected; the

foot' pedal is -thenV depressed lightly bringing the clamps'ii and 62, and if used, the clamp 6I, lightly against the stave. Should the stave 45 be quite narrowas would appear in Fig. 6, the overhanging ends may be blocked up, using for the purpose if desired the replacement staveV which is to be workedon. With the faulty stave so held, the cradle` 31 is' longitudinally shifted until the blade52can be seated'accurately in the' othericrozeV 5211Ar of thev stave. Pressure is then released on'` the" clamps, the replacement stave 46 is moved solidly against the stave 45, and the.cr'o'ze"'in -the stave '46 is brought beneath the blade 52, the blade beingraised'and then seated in the crozes ofb'othVv staves, to deiinitely align them', Thefootlever 61 is now firmly depressed and the twostaves solidly clamped in place. The motor i1fisstartedv and the crozing head 2B broughtupto'sp'eedi After ithas attained full speed the handY lever llis` pulled4 forward and the cutting knives of theV head swung into engagement with the'end of'the stave 46, the cutters" on"Y thehe'a'dfcutting" the staves to length beveling, grooving and'crozing itat the one operation.

It willbe particularly noted, as vthe cut swings across the stave', that the faulty stave forms a supportfor the stave which Visrbeing cut and prevents under ordinary vconditions tearing of the edges of thevariousicuts.

What We claimiis:

1. Means for duplicating in a barrel stave havingvone Vend crozed, aV second croze, by means of a pattern stave having bothends crozed; said meansV including a Vmanually shiftable rotary croze cutter, means for drivingsaid cutter, means for constraining said cutter to-move in a circular path, means, adapted tobe manually engaged with a first croze of said pattern stave, for longitudinally positioningsaid pattern stave with; the croze to be duplicated in alignment With the cutting zoneof said cutter and'means for supporting said-stave with thebottom of said agotadas" crozecoincident with the circumscribing path of said cutter, said supporting means being adapted to support also said barrel stave to be crozed,

means, adapted to be manually engaged with the second Croze of said patternl stave and with the croze of said barrel stave, for aligning the crozed end of said barrel stave with the croze at the opposite end of said pattern stave, and means for clamping ,said pattern and barrel staves during cutting.

2. Means for duplicating inv a barrel stave having one end crozed, a second croze, vbymeans of a pattern stave having both ends crozed, said means including a manually shiftable rotary croze cutter, means for driving said cutter, means for constraining said cutter to move in a circular path, means, adaptedv to be manually engaged With a flrstcroze of said pattern'stave, for longitudinally positioning saidpattern stave with thecroze to be duplicated in alignment with the cutting zone of said cutter, means for supporting the crozed end of said pattern stave, said latter means being adapted to support also said stave tobe crozed, means for shifting said cutter to bring the circumscribing path thereof into coincidence with the bottom of said croze of said pattern stave, means for 'aligning the crozed end of said barrel stave with the other croze of said pattern, and means, adapted to be manuallyy engaged with the second croze ofsaidpattern stave and with the croze of said barrel stave, for clamping said pattern and barrel staves during cutting.

3. Means for duplicating in a barrel stave hava ing one end crozed, a second croze, by means of a pattern stave having both ends crozed; including supporting means, a rotary croze-cutter carried by said means and manually oscillatable thereabout in arcircular path, means for driving said Croze-cutter, means concentric with said path for supporting saidl pattern stave with the bottom of the croze therein to be duplicated coincident with the circumscribing path of said croze cutter, said means also supporting the uncrozed end of said barrel stave, means, adapted to be manually engaged with a first croze of said pattern stave, for aligning the croze in said pattern stave with the cutting zone of said cutter, means concentric with said path for supporting the opposite ends of said staves, means adapted to be engaged with the' crozes in said opposite ends, for aligning said crozes and means for clamping said staves in said supporting means.

4. Means for duplicating in a barrel stave having one end crozed, a second croze, by means of a pattern stave having both ends crozed; said means including a shaft, a support for said shaft, an arm oscillatably mounted on said shaft and manually shiftable, a rotary Croze-cutter carried by the free end of said arm and movable therewith in acircular path, means for driving said croze-cutter, means, concentric with -said v shaft, for supporting said pattern stave with the bottom of the croze therein to be duplicated coincident With the circumscribing path of said croze cutter, said means also supporting for crozing the uncrozed end of said barrel stave, means, adapted to be manually engaged with a first Croze of said pattern stave, for aligning the croze in said pattern stave with the cutting zone of said cutter, means concentric with said shaft for supporting the opposite ends of said staves, means adapted to be engaged with the crozes in said opposite ends for aligning said crozes and means for clamping said staves in said supporting means. l'

f 5.` Means for duplicating in a barrel stave having one end crozed, a second croze, by means of a pattern stave having both ends crozed; saidj means including a shaft, a support for said shaft, an arm oscillatably mounted on saidv shaft and manually shiftable, a rotary croze-cutter carried by the free end kof said arm and movable therewith in a circular path, means for driving said Croze-cutter, Vmeans concentric with said shaftv for supporting said pattern stave with the bottom of the croze therein to be duplicated c0- incident with the circumscribing path of said croze cutter, said means -also supporting` for crozing the uncrozed end of said barrel stave, means for longitudinally aligning said staves, means, adapted to be manually engaged With a rst croze of said pattern stave, for aligning the croze in said pattern stave with the cutting zone of said cutter, means concentric with said shaft for supporting the opposite ends of said staves, means adapted to be engaged with the crozes in said opposite ends for aligning said crozes,` and means for clamping said staves in said supporting means.

6. A croze cutter for barrel staves including; a bed plate, a bracket extending upward at one end .ofsaid bed plate, a shaft carried by said bracket, a manually shiftable arm oscillatably mounted on said shaft, -a rotary head journaled at the free end of said arm and means for driving said head, saidhead carrying cutters including a croze cutter, cradles mounted on said bed plate, saidcradles having arcuate seat portions concentric with said` shaft, a pair 'of aligning blades each of equal thickness With said cr'oze cutter, spaced apart along said bed plate, each said blade being pivotally supported from said bed plate for movement in a zone at right angles to' said shaft, one-of said aligning membersbeing in the zone of said croze cutter, and being manually movable into the path of said cutter, and removable therefrom during cutting operation, the other of said members being manually movable into aligning position, and retainable vtherein during said operation, and manually actuatable stave clamps carried by said bed plate and adapted to cooperate with said cradles to hold .said staves.

7. A device in accordance with claim 6 in which one of said cradles is positioned in alignment with the zone of said Croze-cutter, and another thereof of substantially equal radius is adjustably positioned adjacent the opposite end of said bed.

8. In a barrel stave croze cutter; a bed plate, a bracket extending upward at one end of said bed plate, a shaft carried by said bracket, a manually shiftable arm oscillatably mounted on said shaft, a rotary head journaled at the free end of said arm and means for driving said head, said head carrying cutters including a croze cutter, a pair of cradles mounted on said bed plate, said cradles having arcuate seat portions concentricy with said shaft, and of substantially equal radii,

and being spaced apart to support opposite end portions of a said stave, and a third cradle of substantially greater radius positioned approximately midway between said spaced cradles, a pair of aligning members each of equal thickness with said croze cutter, spaced apart along said bed plate, each said member being pivotally Vsupported from said bed plate for movement in zones at right angles to said shaft, one of said aligning membersbeing in the zone of said croze cutter, and being manually movable into the during cutting operation, the other of said mem-- bers being manually movable into aligning position, and retainable therein during said operation, and a pair of manually actuatable clamps carried by said bed plate and adapted to cooperate with said cradles, said clamps being respectively spaced, each between said center cradle and on one of said pair of cradles.

9. In a croze cutter for barrel staVes, a bed plate, a bracket extending upward at one end of said bed plate, a shaft carried by said bracket, a manually shiftable arm oscillatably mounted on said shaft, a rotary head journaled at the free end of said arm and means for driving said head, said head carrying cutters including a croze cutter, a pair of cradles mounted on said bed plate, said cradles having arcuate seat portions of substantially equal radius, concentric with said shaft, a first of said cradles being positioned substantially in' the zone of said croze cutter and the second Vthereof being adjustably spaced therefrom adjacent the opposite end of a said stave, a pair of aligning blades each of equal thickness witlrsaid croze cutter, one of said blades being pivotally secured to said rst cradle in thezone of saidcroze cutter, and the otherthereof being pivotally secured to the second of said cradles, and said rst blade being manually movable into the path of said cutter, and removable therefrom during cutting operation, and the other of said members being manually movable into aligning position, and retainable therein during said operation, and manually actuatable clamps carried by said bed plate and adapted to cooperate with said cradles.

10. Means for duplicating in a barrel stave having one end crozed, a second Croze, by means of a pattern stave having both ends .'crozed; in-

path of said cutter, and removable therefrom cluding supporting means, alrotary croze-cutter carried'by said means and manually oscillatable thereabout ina circular path, means for driving said Croze-cutter, means concentric with said path for supportingv said pattern stave with the bottom of the croze therein to be duplicated coincident. with the circumscribing path of said Croze-cuttensaid'means also supporting the uncrozed end of said barrel stave, means, aligned with said Croze cutter, for engaging a croze in said pattern stave, means concentric with said path for supporting the opposite ends of both said staves, with said crozes therein in alignment,.means adjacent the center of said staves for` establishing equalbending in both thereof, andmeansA for clamping said staves in said supporting means.

11. Means for duplicating in a barrel stave having one end crozed, a second Croze, by means of a pattern stave having both ends crozed; including supporting means, a rotary vCroze-cutter carriedby said means and manually oscillatable thereabout in aA circular path; means for driving said Croze-cutter.; means, engageable with the crozes of said staves, for longitudinally positioning said staves'with a said crazed end of both in alignment and with the second` said crozed end of said pattern stave in alignment with the cutting zone of said croZe-cutter; means for supporting saidstaVes. for crozing, and means for clamping said staves, said supporting and clamping means accomplishing equal bending of said staves whereby the length between Crozes will be equalin the two.

JESSE W. LEONARD.

-WILLARD R. BUTTERWORTH, JR.

CLAUD LEONARD.

HARRY A; WELLFORD. WALKER L. WELLFORD, JR. 

